FE: UX: Multiple clusters' menu items selected at once

[Haarolean]

          I'm experiencing the same issue using `main` tagged image from docker hub

Originally posted by @hotsezus in #540 (comment)

[AleXWerton]

I'm also experiencing this bug, with multiple clusters, using image kafbat/kafka-ui:v1.1.0

[huntkalio]

I'm also experiencing this bug, with multiple clusters, using latest code.

[michaelslavev]

Bug still present in v1.2.0.